High transaction mail from incometax on saving account interest

The department has asked  to either file a revised ITR  or reply to the query on the compliance portal ...so that's it.

In response to the high value transaction intimation by Income Tax, the course of action is to file a Revised Return considering all incomes which were not included earlier and also responding to the line items in Compliance Portal. You will get a mail from Income Tax once your Revised Return is processed from their end along with the intimation order.